The knob press, following the turn the knob clockwise until it won't turn anymore.Do not intall this product on grout lines.Do not install this product on top of grout lines.Firmly press the knob.Screw cover in Kaifeng.
The knob tight, following the knob clockwise until it stops. Do not intall this product on grout lines. do not install this product on top of the grout line. Firmly press the knob. Tighten Kaifeng cover.